新型大功率水负载的微波和流体设计

Microwave and Hydrokinetics Design of a New Kind High Power Water Load

为了测试从法国Thales公司购买的频率为3700MHz,以连续波模式运行的TH2103C型速调管,提出了一种新型大功率水负载来吸收其单路高达375kW的庞大功率,采用陶瓷片隔开去离子水,再由后者吸收微波功率,所设计的水负载在超过100MHz带宽内驻波比小于1.1;经流体分析、仿真及优化,在高平均功率注入的情况下,微波在水体中产生的热量能迅速地被水流带出高压水箱;陶瓷片所受水体的压力也在其机械强度允许范围之内,满足测试新型速调管的要求。

In order to test the klystron TH2103C made in France Thales at 3700MHz on CW mode, a new kind of high power water load to absorb its single route power up to 375kW is presented. Distilled water sealed with an RF ceramic window is used as the absorbent. In the bandwidth more than 100MHz,the VSWR is below 1.1. After hydrokinetic analysis, simulation and optimization, the quantity of heat generated by microwave can quickly be carried out by water from high pressure water tank at high average power level ; The pressure given by water is still in the range of ceramic mechanical strength, all these can meet the requirement of testing the new kind of klystron.